Question

Find the interest on Rs. 1800 @ 5% P.A. for 4 years. ​

Answer 1

Answer:

SI is 180Rs  and Amount is 1980

Answer 2

Step-by-step explanation:

The Simple Interest is Rs 180.

The Amount is Rs 1980.

Given :-

Principal = Rs 1800.

Rate = 5% per annum.

Time = 2 years.

To find :-

The Interest and Amount.

Step-by-step explanation :-

In this question, we know the Principal, Rate and Time. We have to find the Simple Interest and Amount. First we are going to find the Simple Interest and then we will use a formula to find the Amount using Simple Interest.

\underline{ \fbox {Calculations :-}}

Calculations :-

So first, we are going to find the Simple Interest using the formula given below :-

\underline{ \boxed{ \tt Simple \: Interest = \dfrac{P \times R \times T}{100}}}

SimpleInterest=

100

P×R×T

Here,

P = Principal.

R = Rate.

T = Time.

Simple Interest can also be written as SI.

So, let's use this formula by substituting the given values.

We get :-

\tt S I = \dfrac{18 \!\!\!\not0 \!\!\!\not0 \times 5 \times 2}{1 \!\!\!\not0\!\!\! \not0}SI=

1



0



0

18



0



0×5×2

Cutting off the zeroes,

\tt SI = \dfrac{18 \times 5 \times 2}{1}SI=

1

18×5×2

Now let's multiply the remaining numbers.

\tt18 \times 5 \times 218×5×2

Multiplying the numbers,

\tt\implies180.⟹180.

So, the Simple Interest = Rs 180.

Now, we know that :-

\underline{ \fbox{Amount = Principal + SI}}

Amount = Principal + SI

Here,

Principal = Rs 1800.

Simple Interest = Rs 180.

Substituting the given values in the formula,

Amount = Rs 1800 + Rs 180 = Rs 1980.

Thus, the Amount = Rs 1980.